Hi,
I am still pretty confused by the whole async services with axis 2. I bought
deepaks book purely for this but it really doesn't go into any detail and looks
to be pretty much the same as the axis documentation. I have created a very
basic service which echoes a string, it's just a single method in a pojo and I
have deployed this service successfully.
I have used wsdl2java to create me some client side code and I have included
the option to create the async bits as well. Now trying to follow the
documentation I cannot go any further because I don't get any of the methods
the documentation describes, why is this? What I get is a call back interface
and I have implemented the call back successfully but how exactly am I supposed
to implement a polling client? On my stub client I only have 2 methods
available to me:
SayHelloResponse sayHello(SayHello sayHello12 ) - this looks like the standard
rpc call and the response object does not have an isDone() method to poll;
Void startSayHello(SayHello sayHello12 ) - this is the callback method which I
managed to get working (see code below but don't see how to implement the
polling mechanism or how to set the mep async property for).
My second problem is that I would like to make the service truly asynchronous
by setting property "org.apache.axis2.jaxws.use.async.mep" to true but I don't
see how it's possible to do this using the objects provided by wsdl2java.
I have included my code below in the hope that I get some feedback but I am
beginning to think that I need look for a web services engine which is a little
more user friendly than axis2 because I don't seem to be getting anywhere with
it.
Simple web service:
public class HelloWorld {
public String sayHello(String name){
return "Hello " + name;
}
}
Simple client (How do I set the async mep property and how do I implement a
polling client using the generated classes):
public class HelloWorldClient {
public static void main(String[] args) {
try {
String s = new String("Obj");
HelloWorldStub stub = new HelloWorldStub();
HelloWorldCallbackHandlerImpl cb = new
HelloWorldCallbackHandlerImpl(s);
SayHello sayHello = new SayHello();
sayHello.setName("Paul Ockleford");
//************** HOW DO I IMPLEMENT THIS GIVEN THE CLASSES GENERATED
BY WSDL2JAVA **********
Map<String, Object> rc = ((BindingProvider)
????).getRequestContext();
rc.put("org.apache.axis2.jaxws.use.async.mep", Boolean.TRUE);
stub.startsayHello(sayHello, cb);
synchronized (cb) {
while (!cb.m_done) {
try {
cb.wait(100);
} catch (Exception e) {}
}
}
if (cb.m_response != null) {
String reply = cb.m_response.get_return();
System.out.println("received reply: " + reply);
}
} catch (Exception e) {
e.printStackTrace();
}
}
}
Can anybody help me out with some small code snippets to show how to set the
mep async propery with my code above and also how I would go about implementing
the polling mechanism for the code above?
Thanks,
Paul
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